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Edit Grub Make Windows As Default Boot

The little problem after fresh install BackTrack 5 R3(actually all BT version) is about GRUB,their boot loader OS. Now, it make me difficult(seems to) to wait at front of pc waiting to choose "Windows 7" to boot. If not that,in several seconds,it will boot to BackTrack :(

To make this easier(no more talks) let go to the solution.

Firstly, boot to your BT and make sure you navigate at the desktop screen

Brings up "Terminal" window then type "gedit /boot/grub/grub.cfg" this will open the grub content


You can see the whole content and try to get how it work to understand the function  and a risks :P

The grub.cfg content is like this(mine)

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
  set saved_entry=${prev_saved_entry}
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z ${boot_once} ]; then
    saved_entry=${chosen}
    save_env saved_entry
  fi
}

function recordfail {
  set recordfail=1
  if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd1,5)'
search --no-floppy --fs-uuid --set f3f3fc9f-870d-4e38-b519-094ac0b3c7b5
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=1024x768
  set gfxpayload=keep
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
insmod ext2
set root='(hd1,5)'
search --no-floppy --fs-uuid --set f3f3fc9f-870d-4e38-b519-094ac0b3c7b5
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ ${recordfail} = 1 ]; then
  set timeout=-1
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 3.2.6' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd1,5)'
    search --no-floppy --fs-uuid --set f3f3fc9f-870d-4e38-b519-094ac0b3c7b5
    linux    /boot/vmlinuz-3.2.6 root=UUID=f3f3fc9f-870d-4e38-b519-094ac0b3c7b5 ro   text splash vga=791
    initrd    /boot/initrd.img-3.2.6
}
menuentry 'Ubuntu, with Linux 3.2.6 (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd1,5)'
    search --no-floppy --fs-uuid --set f3f3fc9f-870d-4e38-b519-094ac0b3c7b5
    echo    'Loading Linux 3.2.6 ...'
    linux    /boot/vmlinuz-3.2.6 root=UUID=f3f3fc9f-870d-4e38-b519-094ac0b3c7b5 ro single
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.2.6
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
    insmod ext2
    set root='(hd1,5)'
    search --no-floppy --fs-uuid --set f3f3fc9f-870d-4e38-b519-094ac0b3c7b5
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod ext2
    set root='(hd1,5)'
    search --no-floppy --fs-uuid --set f3f3fc9f-870d-4e38-b519-094ac0b3c7b5
    linux16    /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sdb1)" {
    insmod ntfs
    set root='(hd1,1)'
    search --no-floppy --fs-uuid --set F82A8E192A8DD4D2
    chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###


Simply edit the content by adding comment "###" at the beginning of boot entry. See "menuentry"

This will becoming like this




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